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A244219 as a simple table

na(n)
00
11
22
33
44
56
67
78
89
911
1012
1113
1214
1315
1416
1517
1618
1720
1821
1922
2023
2125
2226
2327
2428
2529
2630
2731
2832
2934
3035
3136
3237
3339
3440
3541
3642
3743
3844
3945
4046
4148
4249
4350
4451
4553
4654
4755
4856
4957
5058
5159
5260
5362
5463
5564
5665
5767
5868
5969
6070
6171
6272
6373
6474
6576
6677
6778
6879
6981

[0,1,2,3,4,6,7,8,9,11,12,13,14,15,16,17,18,20,21,
 22,23,25,26,27,28,29,30,31,32,34,35,36,37,39,40,
 41,42,43,44,45,46,48,49,50,51,53,54,55,56,57,58,
 59,60,62,63,64,65,67,68,69,70,71,72,73,74,76,77,
 78,79,81]